William l



(No Model.)

W. L. BUTTS.

PUMP.

Patented Mar. 5, 1889.

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' which ma)` be of ordinar57 construction.

UNiTED .STATES nrnnvr @einen 'WILLIAM L. BUTTS, OE NASHVILLE, TENNESSEE.

PUMP.

SPECIFICATION forming partei Letters Patent No. 398,938, dated March 5, 1889.

Application filed September 4, 1888.

To all whom it may concern:

Be it known that I, WILLIAM L. Borre, a resident of Nashville, in the county of Davidson and State of Tennessee, have invented eertain new and useful Improvements in Pumps; and I do hereby decla-re that the following is a. full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the aecompanying drawings, and to let-ters of reference marked thereon, which form a` part of this specification.

Mv invention an improvement in pumps, and is shown as applied to a lift-pump, though it is also a pplieable to a forcing-pump The object of the invention is to keep the water in the well pure and sweet b v foreing air through the water at every operation of the piston-rod, thus preventing the water from souring or fouling.

In the drawings, Figure l is a Soelioual view of a pump embodying in v iuveu tion. lfig. L) is :i vertical Section ol' modification.

In the drawings, A relnesents the workingeylinder, which ma;7 be submerged or above ground, and this eontains the lift-valve o, Y

They are shown as connected with their seats to a hollow piston-rod, B, which is operated by a handle, such as shown in Fig. 2. The seat of the valves is in the form of al rin g, as shown at e, and the outer periphervie provided with f a suitable packing, which lits closely the ini ner peripheiwv of the lifting-cylinder,

The pum p-harrel is shown at(` and extends a suitable distant-e down the well, where it is eonneoted with aeasting, I), provided with an offset, fitto which/is connected a section-pipe, e, extending down into the well, its end being perforated to allow for the ingress of the water; also, connected to a branch of the easting D is a cylinderhf, down which the hollow piston-rod extends, carrying upon its end a disk, g, the open bottom end of the pistonbeing eoveredby a cheek-valve, 74.. The bottom of the evlinder f has a cap-pieoe, G, eovering it, and is in connection with the wai er of the well through openings in the bottom of the l said cap-piece. Between these openings and l the bottom of the cylinder f is a valve, i, held l Serial No` 284,564. (No model.)

against shoulders by means of a spring', I, which thus prevents the water from flowing in the cylinder f.

In the operation of the pump as the pistonrod is reciprooated in its upward movement, the valves a, by exhaustingthe air, draw the water through the pipo e., Casting D, and barrel C into the cylinder A, from whence it passes to the spout by lifting the valves a. In the downward movement of the pistou, the Cylinder f being filled with air through the hollow piston, the valve zy being open as the piston moves upward, this air is prevented from esca-ping through the piston-rod by the valve 71 olosng, and the onlyway of escapeis by opening the valve l' b v reason of the air# preesure overcoming the pressure of the spring, and thus the air is discharged into the water and purilies and enlivens the same as it passes through to the outside air.

Ai the top of the Suction-pipe e, I place n ebook-valve, l, wh ich is provided with au arm,

` Il, extending into line with ay projection, 5, on ,l the piston-rod, and when it is deaired to entirely free the pump from water it is onlyneeessarv to throw up the pump-handle to its greatest extent, whieh will cause a projection, 5,10 eome in Contact with the arm 3, thus lifting the valve -land (ilraining the pump oompletely.

In Fig. 2 the pump is substantiallyv the same as in Fig. l with the exception only that instead of having a separa-te suctionpipe, I malte the main barrel of the pump Serve as a auction-pipe by perforating it bei low the water-line and plaeing the air-forcing eylinder below it, aa shown.

I elaim as in v invention l. .In a pump, the combination, with the pump-barrel, of a piston and hollow piston-rod,

valves carried b v said rod for lifting the water, an inletvalve, an air-Chamber connected to the pump-barrel with its lower end below the water-line, and provided with an opening covered b v a suitable valve between the chamber an d outside water, and an opening also Covered by a valve from the piston-rod to the ainehamber, Substantially as described.

In eombination with the pump-barrel, the hollow piston-rod carrying the liftingvalves, an inlet-valve, an aiuohainber eon- IOO opening to the outside air through the hollow nected to the pump-barrel openings from said chamber to the surrounding water, a valve normally closing said openings, e disk carried on Jche lower end 0f the piston-rod, forming` the piston of the ai1chmnber,and a valve I covering the lower open end of the rod, substantially as described. l 2. In combination with the piston-rod of a a pump, carrying the lifting-valves, an inlet- Valve, and im air-cylinder connected to the i pump-barrel, arranged below the weter1ine 

